4157 .III 2* C} B myopenmath.com 0 Question 19 v (9 E1 pt '0 1 G) Details 6.2 The Standard Normal Distribution Table: Find Probability Use the standard normal distribution table to find the probability P(Z Next Question 4157 . "5' [3' G myopenmath.com M 1 pt U1 UDetas 6.2 The Standard Normal Distribution Table: Find Zc Critical Value A distribution of values is normal with a mean of 240 and a standard deviation of 3. Find the interval containing the middle-most 98% of scores. a.) The critical values 2.; = i [j (3 decimal places) b.) The interval is C] (1 decimal place) Enter your answer using interval notation. Example: (2.1 ,5.6) 4157 . "5' [3' B myopenmath.com 0 Question 18 v (9 E41 pt '0 1 G) Details 6.2 The Standard Normal Distribution Table: Zc Critical Value A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.5 years, and standard deviation of 1.6 years. The 10% of items with the shortest lifespan will last less than how many years? a.) Use the table on page 3 to find the critical value 2. = l:J' b.) The 10% of items with the shortest lifespan will last less than [3 years. (1 decimal place) > Next